Spirits and stars · Neutral · catalogued, not judged
Commonly listed in the folk repertoire, but the classical sources do not agree on its rule, so we catalogue it without judging.
San Ming Tong Hui, volume 3, folds it into "Fuchen Sha" (a note reads "Fuchen Sha, same as Blood Blade"), which is a palace-position method - not the same rule as the modern month-branch table.
Source: San Ming Tong Hui, volume 3; Qinding Xiejibianfangshu, volume 36 (Refuting Errors)
It circulates widely in the folk repertoire, but without a settled rule its evidential value is limited.
Qinding Xiejibianfangshu, volume 36 (Refuting Errors) says of "Reverse Blood Blade" that it is "utterly without principle, simply picking three fearsome characters to frighten the simple; lay the table out and its absurdity is plain." The official compilation already rejected it, and it is not the same rule as the palace-position method.
Not judged: catalogued only - it does not enter the chart notes and does not affect any score.
Rule of thumb: these markers are read from fixed classical tables, and the scores and advice come from a separate model. Both are laid out on the site, and neither is a claim about what will happen.
These readings follow the traditional Chinese system (BaZi / Zi Wei Dou Shu) and describe how the classics read a chart. They are not predictions and not medical, legal or financial advice, and no outcome is promised.
Why list an entry the official compilation rejects?
Because it still circulates widely and people look it up. Keeping it here lets us show the passage that rejects it (Qinding Xiejibianfangshu, Refuting Errors) instead of leaving the claim unanswered.
Is it the same rule as the palace-position method?
No. San Ming Tong Hui folds it into Fuchen Sha, which is read from palace positions, not from the month-branch table the folk lists use. Two different rules under one name is exactly why we do not judge it.